Finding the Fourth Proportional to 52,407.06, 72,320.81 and 28,533.32

Step by Step Solution

1. Step 1: Write the proportion equation
   52,407.06 : 72,320.81 = 28,533.32 : x
2. Step 2: Convert to fraction form
   52,407.06/72,320.81 = 28,533.32/x
3. Step 3: Cross multiply
   52,407.06x = 72,320.81 × 28,533.32
4. Step 4: Simplify right side
   52,407.06x = 2,063,552,814.39
5. Step 5: Solve for x
   x = 2,063,552,814.39/52,407.06
6. Step 6: Final answer
   x = 39,375.47